Car-wheel-grinding machine



(N0 Mudel.) 2 Sheets-Sheet 1. W. P. BARCLAY.

GAR. WHEEL GRINDING MACHINE. No. 518,730. Patented Apr. 24, 1894.

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2 Sheets-Sheet 2.

(No Model.)

W. P. BARCLAY. OAR WHEEL GRINDING MACHINE. No. 518,730. Patented Apr. 24.1894.

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WILLIAM PARIS BARCLAY, OF OHIOAGO, ILLINOIS.

CAR-WHEEL-GRINDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 518,730, dated April 24, 1894. Application filed $eptember 26, 1889- Serial No. 325,174.- (No model.)

To all whom it may concern:

Be it known that I, WI LIAM PARIS BAR- CLAY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Oar-Wheel- Grinding Machines, of which the following is a specification.

In the accompanying drawings, Figure 1 represents, a front elevation of the machine. Fig. 2, represents a plan View of the same. Fig. 3, represents an enlarged scale View, partly in section showing general arrangement of supporting car wheels upon the machine. Fig. 4, represents a longitudinal section of an abrading tube, and the appurtenances for operating the same. Fig. 5, represents an exterior longitudinal view of a loose sleeve for holding car wheels or pulleys upon the projecting part of mandrel, of grinding machine. Fig. 6, is an end view of that part of sleeve that fits in bore of car wheel, and that bears upon tapered part of mandrel. Fig. 7, is aplan view of sleeve-head.

Similar letters refer to similar parts th roughout the several figures. I

A, is the bed-plate of the machine.

B, is the head-stock and is secured to the bed-plate.

C, is the spindle for head stock, and is supported from the pillows b, of head-stock.

D, is a mandrel that takes into the spindle O, and projects from the said spindle at each end.

E, are loose, sleeves, fitted to the projecting parts of mandrel, each of the said sleeves bein g divided into several sections, as shown in Fig. 6.

F, are the car wheels that the loose sleeves take into, and secure to the mandril.

G, isa bevel-gear wheel, that is secured to the spindle O, of head stock.

H, is a bevel gear pinion and is firmly secured to its spindle I, which is also the spindle for belt pulley J.

K, K, are pillows secured to head stock and support the spindle I.

L, are abrading tubes, that revolve at right angles to the peripheries of the car wheels or pulleys F.

N, is a follower-plate, see Fig. 4, to which an abrading tube is attached.

0, is the spindle for follower plate.

P, is a thrust spindle, having several thrust collars p, projecting outward circumferentially.

Q, is a face-plate secured to thrust spindle P.

R, is a revolving shield, surrounding the abrading tube and is secured to the faceplate Q, of thrust spindle P. I

S, is a projecting screw that is secured by its collars s, s, to one end of thrust spindle P, said screw taking into spindle O, of follower-plate N, for abrading tube.

U, is a belt pulley attached to thrust spindle P. i

V, is the pillow bracket, from which the abrading tube thrust spindle is secured, said bracket having pillows o, with internal thrust collars o, projecting inward circumferentially.

X, is a duplex slide rest, to the upper slide of which the pillow bracket V, for abrading tube thrust spindle is attached, the upper slide and its bracket may be made in one if desired.

Y, is a disk abrading wheel, supported from duplex slide rests, Z.

- The loose sleeves E, as before stated are made in sections, the sections e, of each sleeve being secured to a head plate e, by the bolts e Rubber rings e', surround each sleeve and assist to hold the several sections 6, of each sleeve together. The bolts cc, of sleeves E, are secured to their head plates e, and when the sleeves E, are placed upon the mandrel the bolts ee, take into the mandrel and are the means as they are screwed into the mandrel of expanding the said sleeves that they forma close and tight fit in the bores of the car wheels, the said sleeves being tapered to the taper of mandrel necessarily have to expand circumferentially as they are forced upon the mandrel by the operation of the bolts ee.

The abrading tubes L, are each secured to their follower plates N, by a nut 0, and washer n, clamping the abrading tubes to their respective follower-plates as shown in Fig. 4. The spindle O, of follower-plate is prevented from turning around in the thrust spindle P, by which it is supported by a cotter or key q, that is inserted in the thrust S, has formed in it a square or other hole that a handle can be inserted to turn said projecting screw around to operate the spindle O, and its follower plate N, with its attached abrading tube L, that said abrading tube can be moved in, or out, from its revolving shield R, as desired. The shield R, revolves with its face-plate Q, and the small space between the abrading tube and its shield can be filled with a cement, this arrangement allows the abrading tube to be rotated at an increased velocity owing to its shield, then acting as a hoop or band around the abrading tube.

The operation of the machine is as follows: Car Wheels or pulleys that are to be operated upon by this machine, are first bored out at the hub or center and into the bore of such car wheels or pulleys sleeves are inserted, that are subsequently situated upon the projecting parts of mandrel D, and firmly secured to the same by the bolts 66, taking into mandrel and forcing the sleeves E, to expand and fill the bores of car wheels and fit tight to the mandrel, the friction of the sleeves upon the mandrel and in the bores of car wheelsbein g sufficient to overcome the resistance of the grinding apparatus upon the peripheries of the car wheels or pulleys when the machine is in operation. The car wheels are made to revolve when mo tion is communicated to the belt pulley J, and gear wheels G, H, the spindle O, of head stock taking into gear wheel G, revolves with it, and through the spindle O, of the mandrel D, is forced to revolve with its car wheels or pulleys. The bolts 66, also are the means by which the sleeves E, and their car wheels or pulleys are taken from the mandrel D, as said bolts only require to be turned around in the reverse direction to cause the sleeves E to be forced from the mandrel D. The car wheels or pulleys when positioned in the machine are then operated upon by the abrading apparatuses acting upon the peripheries of said wheels or pulleys that they abrade or grind off any irregularities the peripheries may have from a smooth, true and cylindrical shape, and which all cast metal wheels or pulleys deviate from as taken in their original condition from the foundry.

Having described my invention, I claim 1. In a car wheel grinding machine the combination of an abrading tube L, follower plate N, spindle 0, taking into thrust spindle P, provided with external thrust collars p, of the pillows o, of the bracket V, provided with internal thrust collars 1;, said pillows carrying spindle P, substantially as shown and described.

2. In a car wheel grinding machine the combination of an abrading tube L, follower plate N, spindle O, thrust spindle P, provided with pulley U, and face plate Q, having a shield R, of the screw S, supported from thrust spindle and taking into spindle O, of the bracket V, with pillows o, adapted to thrust spindle P, and duplex slide rests X supporting said bracket V, substantially as shown and described.

3. In acar wheel grinding machine the combination of head stock B, spindle O and projecting mandrel D, with loose sleeve E, of-an abrading tube L, surrounded by a revolving shield R, of the pillows U projecting from bracket V, and duplex slide rests X,adapted for supporting said bracket V, with its appurtenances substantially as shown and described.

4. In acarwheel grinding machine the combination of mandrel D, and divided sleeve E, formed of several sections 6, with head-plate 6, attached by bolts 6'', and a bolt ee securing sleeve to mandrel, of the rubber rings 6', encircling sections e, of sleeve, permitting expansion and contraction of said sleeve to mandrel, substantially as shown and described.

WILLIAM PARIS BARCLAY.

Witnesses:

FRED HERBERT MERRIFIELD, THOMAS F. DOYLE. 

